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4 SheetsSheet 1. J. H. BULLARD 8: P. A. NIOKERSON. APPARATUS FOR BURNING HYDROOARBON OILS.

Patented 11 (No Model.)

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(No Model.) 4 Sheets-Sheet 2. J. H. BULLARD & F. A. NICKERSON. APPARATUS FOR BURNING HYDROGARBON OILS- No. 435,009. Patented Aug. 26, 1890.

mi'iesses':

(No Model.) 4 sheetssheet 3.

J. H. BULLARD & F. A. NIOKERSON. APPARATUS FOR BURNING HYDROGARBON OILS.

No. 455,009. Patented Aug. 26, 1890.

(No Model.) 4 Sheets-Sheet 4.

J. H. BULLARD & P. A. NIGKERSON. APPARATUS FOR BURNING HYDROUARBON QILS.

No. 435,009. Patented Aug. 26, 1890.

UNITED STATES PATENT, OFFICE.

JAMES H. BULLARD AND FRED A. NICKERSON, OF SPRINGFIELD, MASSA- Cl-IUSETTS.

APPARATUS FOR BURNING HYDROCARBON OILS..

SPECIFICATION forming part of Letters Patent No. 435,009, dated August 26, 1890. Application filed January 31, 1889. Serial No. 298,285. (No model.)

To all whom, it may concern.-

Be itknown that we, JAMES H. BULLARD and FRED A. NIGKERSON, citizens of the United States, residing at Springfield, in the county of Hampden and State of Massachxr setts, have invented new and useful Improvements in Apparatus for Burning Hydrocarbon Oils, of which the following is a specification.

This invention relates to apparatus for the combustion of hydrocarbon oils as fuel in conjunction with air under a regulated pressure, the principal object thereof being to provide in said apparatus means whereby any certain or desired height of oil may be maintained in the burner-tanks, and by which any possibility of such height being exceeded is precluded, and under the invention the efficiencyof the apparatus is increased; and the invention consists in the construction of certain apparatuses and in their correlative and cooperative combination one with another, substantially as hereinafter described, and pointed out in the claims.

Reference is had to the accompanying drawings, in which similar characters of reference designate corresponding parts in all the views.

In the drawings, Figure 1 is a view in elevation showing the apparatus of this invention, comprising a storage-tank, a supply or service tank common to the several burnertanks, and burners which are shown as applied in operative relation with forge-fun naces, an oil-pump for forcing oil from the storage-tank to the supply-tank, an air compressor or pump for affording a supply of air to certain of the apparatuses under a regulated pressure, overflow-pipes leading from certain of said apparatuses to a trap, which is also shown as employed in connection with the invention, devices for automatically controlling the operation of the oil-pump, and checkvalves for said overflow-pipe. Fig. 2 is a plan view of the apparatus shown in Fig. 1. Figs.

3, 4, and 5 are views illustrative of a form of check-valve particularly applicable for use in this apparatus, Fig. 3 being a central vertical section of the valve, Fig. 4: a section of a part thereof on the line 454, Fig. 3, and 5 is a side elevation and projected bottom plan of a part of the valve, as will be apparent from an inspection thereof. Fig. 6 is a central. vertical section of the oil-trap shown in side. elevation and plan in said Figs. 1 and 2. Fig. 7 is a view in elevation, certain parts thereof bein which the hydrocarbon is to be burned,

and E E are the burner-tanks, each provided with one or more burners Z), adapted to permit the passage therethrough of the oil and air under regulated pressure, and said burners and bu rner-tanks are constructed substantially as described and shown in an application for Letters Patent of the United States filed December 1, 1887, Serial No. 256,588, by James H. Bullard, the oil-pipe which supplies the burner extending down into the burnertank so as to enter the oil therein.

Oil is conveyed from the service-tank B through the pipe F and branches F thereof to the said burner-tanks, and air is conveyed under a regulated pressure from the air-pump or compressor indicated at G, through the pipe II and branches l-I thereof, to the service-tan 1:

and the various burner-tanks above the oillevels thereof. lVith respect to the level of the oil in the service-tank the level of the oil in the burner-tanks under the present invention may be at any desired height which is below or at the level of the oil in the service tank; but it is never intended that the oillevel of any of the burner-tanks shall be in a higher plane than the oil level of the said service-tank.

The height of oil in the service-tank is to be automatically controlled in any desired manneras,for instance, through means of a ballfloatand arm carried by a rock-shaft 0, having a lever, between which lever and a radial 1e ver onthe valve-stem 15 of the oil-pump is interposed a connecting-rod 16, as described and shown in an application for Letters Patent of the United States filed February 6,

'1888, Serial No. 263,128, by James H. Bullard.

The service-tank and each burner-tank is provided with an overflow-pipe M, leading from points thereof above the desired oil-level in each of said tanks, and said overflow-pipes from the burner-tan ks connect with a common pipe M which is extended to an oil-trap N, or, as particularly shown, is connected with a pipe L, leading to said trap, and to said pipe L is also connected the overflow-pipe from the service-tank. Said trap is shown in section in Fig. (5, and to the outlet 45 of said trap a pipe Z is connected, leading to the storagetank A. p

A substantially uniform pressure is maintained above the oil in the service-tank and in all the burner-tanks and also in the trap N, for when the oil is at its normal height in the service-tank the overflow-pipe M thereof forms communication between the trap and said tank, and of course the oil-level in any of the burner-tanks will be coincident with that in the service-tank. The outlet of the said trap L is to be provided with automatic means for its closing when no overflow is taking place into said trap from any of the tanks connected therewith, as described, and,

ferred construction of which will be seen on I reference to Figs. 3, 4, and 5. Any overflowage from the burner-tank of course is per-- mitted to pass through the check-valve, the

ball of which rises at such time, closing by gravity when there is no overflow.

As the delivery of oil for consumption through the burn er is dependent upon the degree of the regulated pressure in the burnertank above the oil, when it is desired to regulate the burning of oil at any particular furnace, the cock 1) in each branch pipe H for conveying air-t0 the burner-tank is turned,

regulating the air-pressure, and were it not for the provision of the check-valve in the overflow-pipe air under pressure would be conveyed through said pipe to the burnertank above the oil-level, making the regulation of the pressure practically impossible without the employment of cocks in-the oil- 1 supply branch-pipes F and it will be apparent that the feed of oil through the burner at any desired furnace may be entirely shut off by simply closing the cock in its airsupply pipe H It will be apparent on an inspection of the illustrations accompanying, and from the foregoing description, that under the provisions of the system of overflow-pipes no accidental flooding by oil at any part of the apparatus can take place, even should the devicescontrolled by the ball-float become inoperative.

In Fig. 7 a modified form of the apparatus embracing the essential features of this 1nvention is shown, and in said figure the burner-tank is shown as with its axis coincr dent with and as an enlargement of the branch oil-pipe F but operating in substantially the same Way.

What we claim as our invention is- 1. An apparatus for burning hydrocarbon, comprising one or more burner-tanks,aservice-tank, and a storage-tank, mean s,substantially as described, for conveying oil from the storage-tank to the service-tank, an 01l-.GOH duit leading from said service-tank to each of said burner-tanks, and overflow-pipes leading from said .service-tank and each of said burner-tanks to said storage-tank, whereby the oil in said service and burner tanks is prevented from rising above a given level, substantially as described.

2. An apparatus for burning hydrocarbon, comprising, in correlative and co-operative combination, one or more burner-tanks and burners therefor, a service-tank, an oil-storage tank, and an oil-trap, means, substantially as described, for conveying oil from the said storage to the service tank, an oilconduit leading from said service-tank to each of said burner-tanks, andoverflow-pipes leading from said service-tank and each of said burner-tanks to said trap, and a pipe leading from said trap to said storage-tank, substantially as described.

3. An apparatus for burning hydrocarbon, comprising, in correlative and co-operative combination, one or more burner-tanks and burners therefor, a service-tank, an oil-storage'tank, and an oil-trap, means, substantially as described, for conveying oil from the said storage to the service tank, an oil-conduit leading from. said service-tank to each of said burner-tanks, means, substantially as described, for supplying air under a regulated pressure to said burner and service tanks, and overflow-pipes leading from said service-tank and each of said burner-tanks to said trap, and a pipe leading from said trap to said storage-tank, substantially as described.

4. An apparatus for burning hydrocarbon, comprising, in correlative and co-operative combination, one or more burner-tanks and burners therefor, a service and an oil-storage tank, and an oil-trap, means, substantially as described, for conveying oil from the said storage to the said service tank, an oil-conduit leading from said service-tank to each of said burner-tanks, means, substantially as described, for supplying oil under a regulated pressure to said burner and service tanks, an overflow-pipe leading from said service-tank to said trap, and an overflow-pipe leading from each of said burner-tanks to said trap, and a cheek-valve in the overflow-pipe between said trap and each of. said burnertanks, and a pipe leading from said trap to said storage-tank, substantially as described.

5. An apparatus for burning hydrocarbon, comprising a burner, a burner-tank in proximity thereto, an overflow-tank, and a pipe above the level of the oil-entrance to the burners at the burner-tank and leading to IO the overflow-tank, and an air-forcer by which the air is maintained above the normal pressure in said pipes, substantially as described.

JAMES H. BULLARD. FRED A. NICKERSON. Witnesses:

WM. S. BELLOWS, G. M. ,CHAMBERLAIN. 

